EP4325724C0 - AUDIO SIGNAL PROCESSING METHODS - Google Patents

AUDIO SIGNAL PROCESSING METHODS

Info

Publication number
EP4325724C0
EP4325724C0 EP23210959.5A EP23210959A EP4325724C0 EP 4325724 C0 EP4325724 C0 EP 4325724C0 EP 23210959 A EP23210959 A EP 23210959A EP 4325724 C0 EP4325724 C0 EP 4325724C0
Authority
EP
European Patent Office
Prior art keywords
signal processing
audio signal
processing methods
methods
audio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23210959.5A
Other languages
German (de)
French (fr)
Other versions
EP4325724B1 (en
EP4325724A2 (en
EP4325724A3 (en
Inventor
Markus Schnell
Manfred Lutzky
Markus Lohwasser
Markus Schmidt
Marc Gayer
Michael Mellar
Bernd Edler
Markus Multrus
Gerald Schuller
Ralf Geiger
Bernhard Grill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Publication of EP4325724A2 publication Critical patent/EP4325724A2/en
Publication of EP4325724A3 publication Critical patent/EP4325724A3/en
Application granted granted Critical
Publication of EP4325724B1 publication Critical patent/EP4325724B1/en
Publication of EP4325724C0 publication Critical patent/EP4325724C0/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Liquid Crystal Substances (AREA)
  • Tires In General (AREA)
  • Developing Agents For Electrophotography (AREA)
  • External Artificial Organs (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Peptides Or Proteins (AREA)
  • Materials For Photolithography (AREA)
EP23210959.5A 2006-10-25 2007-10-23 Method for audio signal processing Active EP4325724B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US86295406P 2006-10-25 2006-10-25
EP17169583.6A EP3288027B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values
EP07819259.8A EP2076901B8 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
EP21160250.3A EP3848928B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values
PCT/EP2007/009199 WO2008049589A1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
EP23157260.3A EP4207189B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating time-domain audio samples

Related Parent Applications (4)

Application Number Title Priority Date Filing Date
EP17169583.6A Division EP3288027B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values
EP07819259.8A Division EP2076901B8 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
EP23157260.3A Division EP4207189B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating time-domain audio samples
EP21160250.3A Division EP3848928B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values

Publications (4)

Publication Number Publication Date
EP4325724A2 EP4325724A2 (en) 2024-02-21
EP4325724A3 EP4325724A3 (en) 2024-04-17
EP4325724B1 EP4325724B1 (en) 2024-08-28
EP4325724C0 true EP4325724C0 (en) 2024-08-28

Family

ID=39048961

Family Applications (10)

Application Number Title Priority Date Filing Date
EP09010010.8A Active EP2109098B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating time-domain audio samples
EP23210951.2A Active EP4325723B1 (en) 2006-10-25 2007-10-23 Method for audio signal processing
EP07819260A Active EP1994530B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
EP23210978.5A Active EP4300825B1 (en) 2006-10-25 2007-10-23 Apparatus for audio signal processing
EP23210953.8A Active EP4300824B1 (en) 2006-10-25 2007-10-23 Apparatus for audio signal processing
EP23157260.3A Active EP4207189B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating time-domain audio samples
EP23210959.5A Active EP4325724B1 (en) 2006-10-25 2007-10-23 Method for audio signal processing
EP21160250.3A Active EP3848928B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values
EP17169583.6A Active EP3288027B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values
EP07819259.8A Active EP2076901B8 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples

Family Applications Before (6)

Application Number Title Priority Date Filing Date
EP09010010.8A Active EP2109098B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating time-domain audio samples
EP23210951.2A Active EP4325723B1 (en) 2006-10-25 2007-10-23 Method for audio signal processing
EP07819260A Active EP1994530B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
EP23210978.5A Active EP4300825B1 (en) 2006-10-25 2007-10-23 Apparatus for audio signal processing
EP23210953.8A Active EP4300824B1 (en) 2006-10-25 2007-10-23 Apparatus for audio signal processing
EP23157260.3A Active EP4207189B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating time-domain audio samples

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP21160250.3A Active EP3848928B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values
EP17169583.6A Active EP3288027B1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating complex-valued audio subband values
EP07819259.8A Active EP2076901B8 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples

Country Status (25)

Country Link
US (12) USRE50157E1 (en)
EP (10) EP2109098B1 (en)
JP (2) JP4936569B2 (en)
KR (2) KR100957711B1 (en)
CN (2) CN101606194B (en)
AR (2) AR063400A1 (en)
AT (1) ATE435480T1 (en)
AU (2) AU2007308416B2 (en)
BR (2) BRPI0709310B1 (en)
CA (2) CA2667505C (en)
DE (1) DE602007001460D1 (en)
DK (2) DK3848928T3 (en)
ES (10) ES2993633T3 (en)
FI (1) FI3848928T3 (en)
HU (5) HUE068021T2 (en)
IL (2) IL193786A (en)
MX (2) MX2009004477A (en)
MY (2) MY142520A (en)
NO (3) NO341567B1 (en)
PL (10) PL3848928T3 (en)
PT (5) PT2109098T (en)
RU (2) RU2420815C2 (en)
TW (2) TWI357065B (en)
WO (2) WO2008049590A1 (en)
ZA (2) ZA200810308B (en)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8126721B2 (en) * 2006-10-18 2012-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
PL3848928T3 (en) 2006-10-25 2023-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating complex-valued audio subband values
USRE50158E1 (en) 2006-10-25 2024-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
US8160890B2 (en) * 2006-12-13 2012-04-17 Panasonic Corporation Audio signal coding method and decoding method
US8214200B2 (en) * 2007-03-14 2012-07-03 Xfrm, Inc. Fast MDCT (modified discrete cosine transform) approximation of a windowed sinusoid
ATE518224T1 (en) * 2008-01-04 2011-08-15 Dolby Int Ab AUDIO ENCODERS AND DECODERS
EP2261896B1 (en) * 2008-07-29 2017-12-06 Yamaha Corporation Performance-related information output device, system provided with performance-related information output device, and electronic musical instrument
EP2268057B1 (en) * 2008-07-30 2017-09-06 Yamaha Corporation Audio signal processing device, audio signal processing system, and audio signal processing method
US9384748B2 (en) * 2008-11-26 2016-07-05 Electronics And Telecommunications Research Institute Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching
PL4231295T3 (en) * 2008-12-15 2024-05-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoding method and computer program
PL3751570T3 (en) 2009-01-28 2022-03-07 Dolby International Ab IMPROVED HARMONICS TRANSPOSITION
WO2010086461A1 (en) 2009-01-28 2010-08-05 Dolby International Ab Improved harmonic transposition
TWI458258B (en) 2009-02-18 2014-10-21 杜比國際公司 Low delay modulation filter bank and method for designing the low delay modulation filter bank
US8392200B2 (en) 2009-04-14 2013-03-05 Qualcomm Incorporated Low complexity spectral band replication (SBR) filterbanks
US9299362B2 (en) 2009-06-29 2016-03-29 Mitsubishi Electric Corporation Audio signal processing device
CN101958119B (en) * 2009-07-16 2012-02-29 中兴通讯股份有限公司 Audio-frequency drop-frame compensator and compensation method for modified discrete cosine transform domain
FR2949582B1 (en) * 2009-09-02 2011-08-26 Alcatel Lucent METHOD FOR MAKING A MUSICAL SIGNAL COMPATIBLE WITH A DISCONTINUOUSLY TRANSMITTED CODEC; AND DEVICE FOR IMPLEMENTING SAID METHOD
KR101405022B1 (en) * 2009-09-18 2014-06-10 돌비 인터네셔널 에이비 A system and method for transposing and input signal, a storage medium comprising a software program and a coputer program product for performing the method
ES3051141T3 (en) 2009-10-21 2025-12-26 Dolby Int Ab Oversampling in a combined transposer filter bank
JP5575149B2 (en) * 2009-11-30 2014-08-20 三菱電機株式会社 Demultiplexing device, multiplexing device and relay device
CA3107943C (en) 2010-01-19 2022-09-06 Dolby International Ab Improved subband block based harmonic transposition
JP5782677B2 (en) 2010-03-31 2015-09-24 ヤマハ株式会社 Content reproduction apparatus and audio processing system
JP5719922B2 (en) * 2010-04-13 2015-05-20 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン Method, encoder and decoder for accurate audio signal representation per sample
US9443534B2 (en) * 2010-04-14 2016-09-13 Huawei Technologies Co., Ltd. Bandwidth extension system and approach
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
ES2484795T3 (en) 2010-07-19 2014-08-12 Dolby International Ab Audio signal processing during high frequency reconstruction
CN101908342B (en) * 2010-07-23 2012-09-26 北京理工大学 Method for inhibiting pre-echoes of audio transient signals by utilizing frequency domain filtering post-processing
US8755460B2 (en) * 2010-07-30 2014-06-17 National Instruments Corporation Phase aligned sampling of multiple data channels using a successive approximation register converter
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
FR2969804A1 (en) * 2010-12-23 2012-06-29 France Telecom IMPROVED FILTERING IN THE TRANSFORMED DOMAIN.
WO2012110448A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result
EP2676267B1 (en) 2011-02-14 2017-07-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of pulse positions of tracks of an audio signal
BR112013020324B8 (en) 2011-02-14 2022-02-08 Fraunhofer Ges Forschung Apparatus and method for error suppression in low delay unified speech and audio coding
TWI564882B (en) * 2011-02-14 2017-01-01 弗勞恩霍夫爾協會 Information signal representation using lapped transform
MY165853A (en) 2011-02-14 2018-05-18 Fraunhofer Ges Forschung Linear prediction based coding scheme using spectral domain noise shaping
KR101699898B1 (en) 2011-02-14 2017-01-25 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Apparatus and method for processing a decoded audio signal in a spectral domain
FR2977439A1 (en) * 2011-06-28 2013-01-04 France Telecom WINDOW WINDOWS IN ENCODING / DECODING BY TRANSFORMATION WITH RECOVERY, OPTIMIZED IN DELAY.
FR2977969A1 (en) * 2011-07-12 2013-01-18 France Telecom ADAPTATION OF ANALYSIS OR SYNTHESIS WEIGHTING WINDOWS FOR TRANSFORMED CODING OR DECODING
EP2573761B1 (en) 2011-09-25 2018-02-14 Yamaha Corporation Displaying content in relation to music reproduction by means of information processing apparatus independent of music reproduction apparatus
USRE48258E1 (en) 2011-11-11 2020-10-13 Dolby International Ab Upsampling using oversampled SBR
JP5494677B2 (en) 2012-01-06 2014-05-21 ヤマハ株式会社 Performance device and performance program
EP2717262A1 (en) 2012-10-05 2014-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for signal-dependent zoom-transform in spatial audio object coding
MY198868A (en) * 2013-02-05 2023-10-02 Ericsson Telefon Ab L M Method and appartus for controlling audio frame loss concealment
TWI557727B (en) 2013-04-05 2016-11-11 杜比國際公司 Audio processing system, multimedia processing system, method for processing audio bit stream, and computer program product
KR102450178B1 (en) 2013-04-05 2022-10-06 돌비 인터네셔널 에이비 Audio encoder and decoder for interleaved waveform coding
EP3671738B1 (en) 2013-04-05 2024-06-05 Dolby International AB Audio encoder and decoder
US10893488B2 (en) 2013-06-14 2021-01-12 Microsoft Technology Licensing, Llc Radio frequency (RF) power back-off optimization for specific absorption rate (SAR) compliance
EP2830054A1 (en) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder and related methods using two-channel processing within an intelligent gap filling framework
CN111292757B (en) 2013-09-12 2024-05-24 杜比国际公司 Time alignment of processed data based on QMF
KR102159990B1 (en) 2013-09-17 2020-09-25 주식회사 윌러스표준기술연구소 Method and apparatus for processing multimedia signals
US10580417B2 (en) 2013-10-22 2020-03-03 Industry-Academic Cooperation Foundation, Yonsei University Method and apparatus for binaural rendering audio signal using variable order filtering in frequency domain
KR102244613B1 (en) * 2013-10-28 2021-04-26 삼성전자주식회사 Method and Apparatus for quadrature mirror filtering
KR101627657B1 (en) 2013-12-23 2016-06-07 주식회사 윌러스표준기술연구소 Method for generating filter for audio signal, and parameterization device for same
KR101782917B1 (en) 2014-03-19 2017-09-28 주식회사 윌러스표준기술연구소 Audio signal processing method and apparatus
KR101856540B1 (en) 2014-04-02 2018-05-11 주식회사 윌러스표준기술연구소 Audio signal processing method and device
PL3155617T3 (en) 2014-06-10 2022-04-19 Mqa Limited Digital encapsulation of audio signals
WO2016142002A1 (en) 2015-03-09 2016-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
TWI879690B (en) 2015-03-13 2025-04-01 瑞典商杜比國際公司 Audio processing unit, method for decoding an encoded audio bitstream, and non-transitory computer readable medium
EP3107096A1 (en) 2015-06-16 2016-12-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Downscaled decoding
US10847170B2 (en) * 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges
WO2017050398A1 (en) 2015-09-25 2017-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding
MX386551B (en) * 2016-03-07 2025-03-19 Fraunhofer Ges Forschung ERROR CONCEALMENT UNIT, AUDIO DECODER, AND RELATED METHOD AND COMPUTER PROGRAM USING CHARACTERISTICS OF A DECODED REPRESENTATION OF AN APPROPRIATELY DECODED AUDIO FRAME.
JP6976277B2 (en) * 2016-06-22 2021-12-08 ドルビー・インターナショナル・アーベー Audio decoders and methods for converting digital audio signals from the first frequency domain to the second frequency domain
EP3276620A1 (en) 2016-07-29 2018-01-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Time domain aliasing reduction for non-uniform filterbanks which use spectral analysis followed by partial synthesis
US10224974B2 (en) 2017-03-31 2019-03-05 Microsoft Technology Licensing, Llc Proximity-independent SAR mitigation
TWI681384B (en) * 2018-08-01 2020-01-01 瑞昱半導體股份有限公司 Audio processing method and audio equalizer
ES3021337T3 (en) 2019-02-21 2025-05-26 Ericsson Telefon Ab L M Spectral shape estimation from mdct coefficients
MX2021010570A (en) 2019-03-06 2021-10-13 Fraunhofer Ges Forschung Downmixer and method of downmixing.
TWI866996B (en) 2019-06-26 2024-12-21 美商杜拜研究特許公司 Low latency audio filterbank with improved frequency resolution
CN112447166B (en) * 2019-08-16 2024-09-10 阿里巴巴集团控股有限公司 A processing method and device for target spectrum matrix
EP3786948A1 (en) * 2019-08-28 2021-03-03 Fraunhofer Gesellschaft zur Förderung der Angewand Time-varying time-frequency tilings using non-uniform orthogonal filterbanks based on mdct analysis/synthesis and tdar
UA129473C2 (en) 2019-09-03 2025-05-07 Долбі Лабораторіс Лайсензін Корпорейшн AUDIO FILTER BANK WITH DECORRELATION COMPONENTS
CN111402917B (en) * 2020-03-13 2023-08-04 北京小米松果电子有限公司 Audio signal processing method and device and storage medium
PL4165628T3 (en) 2020-06-11 2025-12-22 Dolby International Ab Frame loss concealment for a low-frequency effects channel
US11632147B2 (en) * 2020-08-13 2023-04-18 Marvell Asia Pte, Ltd. Simplified frequency-domain filter adaptation window
CN114007176B (en) * 2020-10-09 2023-12-19 上海又为智能科技有限公司 Audio signal processing method, device and storage medium for reducing signal delay

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US351882A (en) 1886-11-02 Thill-coupling
US3666543A (en) 1969-11-24 1972-05-30 Ludwig Maier Tris-(2-hydroxyalkyl)-phosphine oxide flame retardant articles
JP3065343B2 (en) 1989-05-17 2000-07-17 トムソン コンシューマー エレクトロニクス セイルズ ゲゼルシャフト ミット ベシュレンクテル ハフツング Signal transmission method
CN1062963C (en) 1990-04-12 2001-03-07 多尔拜实验特许公司 Adaptive-block-lenght, adaptive-transform, and adaptive-window transform coder, decoder, and encoder/decoder for high-quality audio
JP3277682B2 (en) 1994-04-22 2002-04-22 ソニー株式会社 Information encoding method and apparatus, information decoding method and apparatus, and information recording medium and information transmission method
KR100346734B1 (en) 1995-09-22 2002-11-23 삼성전자 주식회사 Audio coder and decoder having high speed analyzing filter and composite filter
US5819215A (en) 1995-10-13 1998-10-06 Dobson; Kurt Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of digital audio or other sensory data
AU6044398A (en) 1997-01-27 1998-08-26 Entropic Research Laboratory, Inc. A system and methodology for prosody modification
JP3065067B2 (en) * 1998-03-04 2000-07-12 韓國電氣通信公社 Equally spaced subband analysis filter and synthesis filter for MPEG audio multi-channel processing
FI114833B (en) 1999-01-08 2004-12-31 Nokia Corp Method, speech encoder and mobile apparatus for forming speech coding frames
US6226608B1 (en) 1999-01-28 2001-05-01 Dolby Laboratories Licensing Corporation Data framing for adaptive-block-length coding system
US6510407B1 (en) 1999-10-19 2003-01-21 Atmel Corporation Method and apparatus for variable rate coding of speech
SE0001926D0 (en) 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation / folding in the subband domain
US6718300B1 (en) * 2000-06-02 2004-04-06 Agere Systems Inc. Method and apparatus for reducing aliasing in cascaded filter banks
US6748363B1 (en) * 2000-06-28 2004-06-08 Texas Instruments Incorporated TI window compression/expansion method
JP2002091499A (en) 2000-06-14 2002-03-27 Texas Instruments Inc Window compressing/expanding method
EP1199711A1 (en) 2000-10-20 2002-04-24 Telefonaktiebolaget Lm Ericsson Encoding of audio signal using bandwidth expansion
US6996198B2 (en) 2000-10-27 2006-02-07 At&T Corp. Nonuniform oversampled filter banks for audio signal processing
US6707869B1 (en) 2000-12-28 2004-03-16 Nortel Networks Limited Signal-processing apparatus with a filter of flexible window design
SE0101175D0 (en) 2001-04-02 2001-04-02 Coding Technologies Sweden Ab Aliasing reduction using complex-exponential-modulated filter banks
US7136418B2 (en) * 2001-05-03 2006-11-14 University Of Washington Scalable and perceptually ranked signal coding and decoding
JP4106624B2 (en) 2001-06-29 2008-06-25 株式会社ケンウッド Apparatus and method for interpolating frequency components of a signal
WO2003019533A1 (en) 2001-08-24 2003-03-06 Kabushiki Kaisha Kenwood Device and method for interpolating frequency components of signal adaptively
DE10228103A1 (en) 2002-06-24 2004-01-15 Bayer Cropscience Ag Fungicidal active ingredient combinations
ES2259158T3 (en) * 2002-09-19 2006-09-16 Matsushita Electric Industrial Co., Ltd. METHOD AND DEVICE AUDIO DECODER.
SE0301273D0 (en) * 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex exponential-modulated filter bank and adaptive time signaling methods
JP3876850B2 (en) 2003-06-02 2007-02-07 ヤマハ株式会社 Array speaker system
US7563748B2 (en) 2003-06-23 2009-07-21 Cognis Ip Management Gmbh Alcohol alkoxylate carriers for pesticide active ingredients
EP1513137A1 (en) 2003-08-22 2005-03-09 MicronasNIT LCC, Novi Sad Institute of Information Technologies Speech processing system and method with multi-pulse excitation
TWI227866B (en) 2003-11-07 2005-02-11 Mediatek Inc Subband analysis/synthesis filtering method
CN1270290C (en) * 2003-11-26 2006-08-16 联发科技股份有限公司 Subband Analysis/Synthesis Filtering Method
CN100573666C (en) * 2003-11-26 2009-12-23 联发科技股份有限公司 Subband Analysis/Synthesis Filtering Method
JP2007520748A (en) 2004-01-28 2007-07-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Audio signal decoding using complex data
CA2457988A1 (en) 2004-02-18 2005-08-18 Voiceage Corporation Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization
RU2346996C2 (en) 2004-06-29 2009-02-20 ЮРОПИЭН НИКЕЛЬ ПиЭлСи Improved leaching of base metals
US8260611B2 (en) 2005-04-01 2012-09-04 Qualcomm Incorporated Systems, methods, and apparatus for highband excitation generation
US7774396B2 (en) 2005-11-18 2010-08-10 Dynamic Hearing Pty Ltd Method and device for low delay processing
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US8036903B2 (en) 2006-10-18 2011-10-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Analysis filterbank, synthesis filterbank, encoder, de-coder, mixer and conferencing system
PL3848928T3 (en) 2006-10-25 2023-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating complex-valued audio subband values
TW200922334A (en) 2007-11-02 2009-05-16 Univ Nat Chunghsing Low complexity frequency field motion estimation method adapted to wavelet video coding

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